The diacritical mark is encoded differently in the two different search/places. In one search, it is encoded with a single code point (the letter and acute mark as a single character ή), and in another, there are two code points (one for the letter η and the next for the acute mark ´ which is combined during layout as ή). So they do not return the same results.

I would classify this as a bug because you do not get expected behavior, even if, technically, it is working since the input strings are different. Visually, you should be able to preform the search and see them all, regardless of how the text was logically specified.

It should be possible to fix this in an update, and I have logged this as a bug.

-Brandon
Author of SwordSearcher Bible Software

Ephesians 6:17 And take the helmet of salvation, and the sword of the Spirit, which is the word of God